Locomotive-cab-window ventilator.



C. M. GOODRIGH.

LOGOMOTIVB GAB WINDOW 'VENTILATOR- APPLICATION FILED JAN.16, 1909.

Patented June 15, 1909u .A Us@ u 0,0 ZZISZ Clim 1;?

Nr ernten.

CHARLES M. GooonicH, or CLINTON,V IOWA.

LOCOMOTKVE-CAB-WINDOW VENTILATOR.

No. ceases.

Specification of Letters Patent.

Application tiled January 16, 1909.

Patented June 15, loca.4

Serial No. 472,729.

To all whom it may concern:

Be it known that I, CHARLES M. GOOD* moine citizen of the United States,residing at Cllnton, county oi' Clinton, and State ot' Iowa, haveinvented a new and useful Locomotive Cub I'Vindow Ventilator,` of whichthe following is a specification.

.ll/lyinvention relates to a locomotive cab window ventilator, and hasfor its main object to provide a ventilator adjacent to the windows ofthe cab so arranged that cold atmospheric air may be conducted to theinner side of the windows to prevent vfrost from Jforming thereon incold weather.

A further object of my invention is to provide a ventilator especiallyadapted to be used in combination with the locomotive` cab windowpatented December 1st, 1908, Serial No. 905,417, the general form ofwhich is reproduced in the accompanying drawings.

Other objects will appear hereinafter.

With these objects in view my invention consists generally inaiventilator which may be adjusted for regulating the volume of incomingcold air or entirely cutting oi the su ply of same.

y invention will be more readily understood by reference to the`\accompanying drawings forming a part of this specification, and inwhich,

Figure 1 is a fragmentary perspective lview showing a portion of the caband the cab window to whlch my improved ventilator is attached. Fig. 2is a top elevation of the cab Window and ventilator. Fig. 3 isl a frontelevation showing the ventilator and window frame, the Window beingremoved for clearness of illustration. Fig. 4 is a detail sectionalvview showing the ventilator adjusting knob in elevation, and Fig. 5 isa sectional View of said knob.

Referring now to the drawings 1 indicates the window frame and 2the-body ofthe ventilator hinged theretoby means ofthe eye-screws 3 andthe hingerod 4. The body 2 of the ventilator is preferably of sheetmetal and comprises triangular central and end portions lntegraltherewith and perforated vto receive the hinge rod 4.- The -hinge Arod 4is verticall mounted thereon isv a helica s ring 5 having one end inengagement with t e body 2 an the other with the window'jrame 1 andadapted to maintain the rear edge ofthe body 2 in close engagement withthe adjusting rod 6. i

disposed and' In Fig. 3 the window 7 and hinges 8 are removed 1n orderthat a defiecting angle plate 9 may be exposed to view, said angle platebeing vertically disposed and secured to the inner side ot' the frame 1and serving to deflect the cold air entering through the perforations 10ot' the frame 1 onto the glass of the window 7 the direction of theincoming air being indicated by arrows in Figs. l and 2. By this meansit will. be readily seen that air on each side of the window glass willbe maintained at approximately the same temperature thus preventingwater of condensation fromy collecting on the glass. In this mannerfrosty windows are prevented and the engineers vision is not obstructedhowever cold the w eather may be.

It is obvious that when the locomotive is runnin@ at a .high speed thata`larger vol- -ume o? air may enter .the cab than is rcquired to producethe desired effect, when the ventilator is open to its fullest capacity,hence the adjusting rod 6 is provided to. regr ulate the opening. Theknob G -is within the reach of the engineer and by turning the same theventilator may be properly adjusted.

The adjusting knob 6 comprises a sleeve 11 screwed to the window frame land a slidable bolt 12 provided with a longitudinally extendingperipheral groove .13 `and tapped to receive the screw 14 integral withceive the flange 17 formed on the sleeve 11.v

A tooth 18 in the sleeve 11 extends vinto the groove 13 and prevents thebolt 12 from rotating. The periphery of the knob 15 may be knurled asshown in Fig. 4, and the relative movement of the parts of the knob isobvious from Fig. 15. y I

While I have shown what I deem to be the preferable form of mylocomotive cab window ventilator, I do not wish to be limited thereto,as there might be minor changes 'made in the details of constructionandA arrangement of parts without the spiritfof my invention. i

Having Adescrib d my. invention4 what I vdeparting from claim'asnew and.desire to secure by Letters Patent is:

1. In a locomotive,'aQeaib having-a. window said' window, and meansfori-1 irse-ting atlio mosphericair through said perfor-ations onto theglass of said `Window, substantially as and for the purposes set forth.

2. In a locomotive, a cab having` a window frame provided with anangularly arranged Window, a ventilator having a vertically disposedbody provided with perforated triangular portions disposed perpendicularthereto, eye-screws` secured in said frame the eyes of Which arearranged to register with the perforations in said triangular portions,a hinge-rod passing through saidl perforations and said eyes, a helicalspring arranged on said rod, an adjusting knob mounted in said frameadapted to contact with the rear of said body, said spring being adaptedto maintain the rear portion of said body in'close engagement with saidknob, said frame being provided .with a plurality of perforationsarranged adjacent to said Window, and a vertical detlector disposed atan angle to said frame and adapted to direct the incoming air againstthe inner surface of the window glass, substantially as and for thepurposes set forth.

3. In a. locomotive, a cab having a window frame comprising an'singularly disposed window, a ventilator having a body hin ed to theoutside of said `frame, 'said frame eing provided with pertforations forthe'entrance of air to be deiected upon the Window glass for preventingthe formation of frost thereon, a helical spring/connected with thehinge of said body, an adjusting knob mounted in said frame, said springadapted to maintain said body in constant engagement with said knob,said knob comprising a sleeve secured in said frame, a bolt slidably andnon-rotatably mounted on said sleeve and provided with a screwextension, and .f

said boltl being tapped to receive said extension, substantially as andfor the purposes set forth.

In testimony whereof 'I have signed my name to this specification in thepresence of i two subscril'iing witnesses.

CHARLES M. GOODRICH.

X'YitIiesses: l Y

Josirim R. H. Panne, HELEN l?. LILLIS.

